I've watched several videos of a drone being snatched by a bird of prey, including the Phantom range. We're always watching out for eagles, especially on our nature reserve in South Africa - where we have five different species as well as other birds of prey. The larger eagles can swoop faster than a drone in sports mode can travel, so "be prepared" is an essential psychological quality in such circumstances where the chances of attack are relatively high.
Predators are simpler in their responses than many people imagine. Movement alone can trigger an attack. Speed matters. Delay and you remain hungry.
Two of us have been attacked by a black eagle when we were over one mile away from a nest with a chick. We had to crouch down and use a heavy Manfrotto tripod to defend ourselves. The wingspan of a black eagle is 8 or 9 ft and they can easily knock a leopard off its hunt - leopards being the main predator, historically, of humans.